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(parent: 5c0805c) | patch
ACPI: Limit access to custom_method when the kernel is locked down
authorMatthew Garrett <matthew.garrett@nebula.com>
Wed, 5 Apr 2017 16:40:30 +0000 (17:40 +0100)
committerBen Hutchings <ben@decadent.org.uk>
Sun, 1 Oct 2017 14:52:09 +0000 (15:52 +0100)
commit2415d6c7cc444cc9126da8648fa500801cba427f
tree742b690bd1cc5fd7cbcf2882b33f301f43c97103tree | snapshot
parent5c0805c8d7c9ff3d964dd754f4c2c03ee37cc682commit | diff
ACPI: Limit access to custom_method when the kernel is locked down

custom_method effectively allows arbitrary access to system memory, making
it possible for an attacker to circumvent restrictions on module loading.
Disable it if the kernel is locked down.

Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Gbp-Pq: Topic features/all/lockdown
Gbp-Pq: Name 0053-ACPI-Limit-access-to-custom_method-when-the-kernel-i.patch
drivers/acpi/custom_method.c diff | blob | history
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